Governor.



PATENTED NOV. 24, 1903.

R. HARRIS.

GOVERNOR.

APPLIGATION FILED JULY 28, 1902.

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Patented November 24:, 1903.

PARNT @rricia.

RALPH HARRIS, OF KANSAS CITY, MissoURI.

GOVENOH.

SIECIFIGATION forming part of Letters Patent No. 745,056, dated November2 1903.

To aZZ whom, it may concern:

Be it known that I, RALPH HARRIS, a citizen of the United States, and aresident of Kansas City, in the county of Jackson and State of Missouri,have invented a new and Improved Governor, of which the following is afull, clear, and exact description.

The invention relates to governors used for various purposesforinstance, for controlling the amount of gasolene for explosive-en-Vgines.

The object of the invention is to provide a new and improved governorwhich is composed of but few parts, not liable to easily get out oforder, and arranged to Work with the greatest precision andsensitiveness to accurately control the speed of the device on which itis used.

The invention consists, of novel features and parts and combinations ofthe same, as will be more fully described hereinafter and then pointedout in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a sectional side elevation of the improvement applied to theinlet-valve for a gasolene-pump of an eXplosive-enginesuch, forinstance, as shown and described in the application for Letters Patentof the United States filed under even date herewith, Serial No. 117,242.Fig. 2 is a plan view of the improvement, parts being in section; andFig. 3 is a sectional side elevation of the exhauster.

The frame A,.on which the governor is mounted, is provided with ahearing A, in

which is arranged to turn the hub B of a wheel B, on which is secured orformed a pulley 0, connected by belt with a driven part of the device onwhich the governor is used, so as to rotate the Wheel B. The latter isformed with an axial cylinder B in which is mounted to slide lengthwisea piston D, connected at its outer endwith a bell-crank lever 11,connected by a link E with an arm E held on the stem of anadmissionvalve F, arranged in the suction-pipe G of a gasolene-pump H,

discharging into a supply and mixing pipe I for conducting the explosivemixture into the working cylinder of the engine.

The inner end of the piston D is pressed by a spring J, the tension ofwhich can be regulated by a screw-plugK or other suitable means, thesaid spring serving to hold the piston D in an outermost positionagainst atmospheric pressure exerted on the outer end of the piston. Thescrew-plug K, as shown, serves to close the end of the cylinder oppositethe one through which the piston D projects.

The cylinder B between the inner end of the piston D and the inner endof the screwplug K, is connected by an annular narrow passage-way B withan exhaust-chamber 13, preferably divided by partitions B into aplurality of compartments, as plainly indicated in Fig. 3, the saidexhaust-chamber being connected by ports B with the peripheral face ofthe Wheel B, it being sufficient to provide a single port B for eachcompartment.

The operation is as follows: When the engine or other device on whichthe governor is applied is rotated, then a rotary motion is given to thewheel B, so that the air in the exhaust-chamber B is exhausted.therefrom by centrifugal force, the airpassing from the chamber throughthe ports 13 to the outside of the wheel. As the air is exhausted fromthe chamber 3* it is evident that a like exhausting of air takes placein the cylinder B as the latter is connected by the passage-way B withthe chamber B and consequently the atmospheric pressure exerted againstthe outer end of the piston D causes the latter to slide inward againstthe tension of the spring J and in doing so causes a swinging of thebell-crank lever E to actuate the valve F for cutting off the supply ofgasolene to the pump H as the speed of the governor-wheel B increasesbeyond a normal rate of speed. When the speed of the Wheel B decreases,then air passes back into the chamber B and cylinder B by way of theports 13 and passage-way B so that pressure against the inner end of thepiston D is increased to allow the spring J to push the piston Dcorrespondingly outward for opening, the valve F to a normal openposition. When the wheel B stops completely, then the piston D is pushedby atmospheric pressure outward to such an extent that the valve F ismoved into a closed position.

By having the exhaust-chamber divided into compartments the aircontained in the exhaust-chamber is not liable to lag behind the speedof the revolving governor and a full effect of the centrifugal action ofthe revolving wheel is obtained.

It will be seen that the partitions B of the wheel B are disposed at atangent'to the axis of rotation, the outer ends of said partitionsextending tangentially backward with reference to the direction of therevolution of the wheel. The peripheral openings 13 are at the points ofthe angles formed by the union of the partitions B with the innerperiphery of the wheel B. Hence the inclination of the air within theperipheral chamber to lag behind the speed of the revolving governorwill cause said air to be wedged, as it were, into said angles with itsgreatest pressure or density at these points. For that reason theopenings B are preferably located at the rear points or ends of thechambers B. Again, if the governor he suddenly stopped the momentum ofthe air Within the chambers B Will cause it to be jammed or packed, asit were, into the forward ends of the said chambers, thereby making thevacuum within said chambers the greatest at the points where theopenings B are located. Thus it appears that the disposing of thepartitions B and the locating of the openings B as shown conspire tocause the air at a given speed to be most rapidly exhausted from saidchambers B when the wheel B is in motion and to be most quickly drawnagain into said chambers to relieve the vacuum when the motion of theWheel is stopped or retarded. In the ordinary blast-fan the fan properis located in a stationary case, and when the fan is revolved to impartcentrifugal force to the air within said case to expel the air therefromthe moving body or mass of air constantly adheres in a measure to theinner walls of the stationary case by frictional contact therewith, andconsequently more power is required to impart a given speed to the fanbecause of said frictional contact. My fan difiers from all these fansin that the entire chamber containing the air is revolved, so that Ientirely avoid the frictional contact just referred to.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A governor comprising a revoluble case having anaxial cylinder revolving therewith and provided with anexhausting-chamber for the cylinder, and a piston in the said cylinder,connected with the part to be governed, as set forth.

2. A governor comprising a revoluble hollow wheel inclosing anexhausting-chamber having peripheral outlets and with an axial cylinderrevolving with the Wheel and connected with the exhausting-chamber, anda piston slidable in the cylinder and connected with the part to begoverned, as set forth.

3. A governor comprising a revoluble circular shell inclosing anexhausting-chamber having peripheral outlets, an axial cylinderrevolving with said shell and connected with the exhausting-chamber, apiston slidable in the cylinder and connected with the part to begoverned, and a spring pressing the said piston, as set forth.

4:. A governor comprisinga revoluble wheel or shell forming theinclosing Walls of an exhausting-chamber having peripheral outlets andwith an axial cylinder forming a rigid extension of said shell connectedwith the exhausting-chamber, a piston slidable in the cylinder andconnected with the part to be governed, a spring pressing the saidpiston, and means for regulating the tension of the said spring, as setforth.

' 5. In governors, a revoluble wheel having an air-chamber therein,transverse partitions within said chamber forming the same into aplurality ofcompartments,each compartment having an opening incommunication with the outer air, a central cylinder in the wheel and incommunication with said chamber, a piston in the cylinder and connectedto the part to be governed, and means for revolving said Wheel to expelthe air from said chamber by centrifugal pneumatic force, whereby tocreate a vacuum within said chamber to influence the piston, for thepurpose set forth.

6. In a governor, a revoluble wheel or shell having a centralvacuum-cylinder, and a ringshaped chamber surrounding said cylinder andin communication therewith, transverse partitions within said chamberdividing the same into a plurality of compartments each having anopening leading into the outer air, said partitions being tangentiallydisposed with their outer ends inclined backwardly with respect to thedirection of revolution of the wheel, said openings being located in therear portions of their respective chambers, a spring-pressed piston inthe cylinder connected to the device to be governed, and means forrevolving said wheel to expel the air from the chamber therein bycentrifugal force, to create a vacuum within said chamber to influencethe piston, for the purpose set forth.

7. In a governor, a revoluble wheel or casing having a centralvacuum-cylinder, and a ring-shaped chamber surrounding said cylinder andin com munication therewith by means of an annular diametrical slit,transverse partitions within said chamber dividing the same into aplurality of compartments, each having an opening leading into the outerair, a

piston in said cylinder, said piston being inname to this specificationin the presence of flnenced by the Vacuum within the cylinder twosubscribing Witnesses.

of the revolnble wheel and being connected with the part to begoverned,and a spring in 5 said cylinder, located between the piston and anadjustable stop, for the purpose set forth.

In testimony whereof I have signed my RALPH HARRIS Witnesses:

W. S. ARNETT, ANNA I-[ARRIs ARNETT.

